Pipe-making machine.



W. A. REBS.

PIPE MAKING MACHINE.

APPLIGEATION FILED SEPT. 29, 1910.

Patented Nov. "7, 1911.

3 SHEETS-SHEET 1.

W. A. REBS.

PIPE MAKING MACHINE.

APPLIOATION FILED SEPT. 29, 1910. v 1 ,007,9'74, Patented Nov. 7, 1911.

O E T 6 .N N H n Tb E 0 E V A T E N T u I A S m Wl TNESSES W. A. REBS.

PIPE MAKING MACHINE.

.APPLIoATIoN FILED SEPT. 29, 1910.

Patented- Nov. 7, 1911.

3 SHEETS-SHEET 3.

9 N, qv. 3

- 5,? 47 .f4 f4 f7 INVENTOR VIZ/4.96495.

AT'olcNEY.

UNITED STATES OFFICE-f HPE-MKNGMCHINE;

momia.

. the bearings bevoonnected To all whomc't ma/y concern;

Be it known that I, WAL'maARnn a kwith a suitablemotornot shown).=' ..Imme citizen of the United States, residing; at San diately below the cylin eri" a-tray, the in- Antonio, in the countylof Bexar and` State ner surface of which'is.Q thg@miie311mm- 5 of Texas, have inventedcertain new and use ture as the outside of thecylindeg ,thetray .ful Improvements' in x Pipe-Making Ma'- being preferably carried inV v-a-, channel frame chines; and I do declare thefollowing to be 10,. mounted onA anti-frictionkrollersl 1'1 and a full, clear, and exact ydescription of'theinadapted for movement longitudiiially,Y as

vention, such as -will enable others skilled presently more fully'describedg'f f l@ in the art to which it apertains to make and l( des'gnates a [curved plate that extends use the same, reference eilig had to the acforwardl .,from the I upper part of the icylincompanying drawings, and to the letters and derv top t e '-tray member 9, with which it iigures of reference marked thereon, which4 .formsja-conti11uation ofthe cylinder for form a part of this specification. Y shaping theupperpart ofthe, pipe. i

i5 My invention relates topipe making nia' the lirvwirdfend ofthe machine is a chines and more particular y to a device of bellforining. `device 12, comprising a.y lower that class in which concrete, clay or shale is portion 13. and ltwo lid membersy 14 and 15 formed into pipe by a combined feeding and Vwhich areA I"fpivotall oonnectedfwith said molding mechanism. 5.,?. lower portion by hinges y16' and@ 17 respec-` 2n It is the principal object of theinventon lively, and are Sfllleflyil?V f heP bythe to provide a means for supporting the` pipe l latches 18 when closed. thefforward end during., the forming operation, and upOnAjQV-thvs -bell is remOVablymounted a plug 19, which the pipe may be yremoved from .the` `/t-hefcentral part of which ishollowed out machine when completed and allowed vtorest vt0 receive the core 21,- theplug-bein `adapted until seasoned .or hardened; for retaining material while the be lis being A further object is to provide mechanisms formedand for `shapi11g the inside of thel :tor applying reinforcement to the pipe as it bellg y l 1. 1 L; is formed. l -J'Itf is.' obviousgthat the shape oflthe bell A further object is to providegtheother` forming devicemaybe varied tomold differnew and im roved detailsof structurede ent Styles ofLbells,-or s`liap,e the pipe ends.

scribed and illustrated in the accompanying 1 22 designates abarwhich is riveted to the drawings, in which:- g ybell fcrmmgdeviceandlbolted tothe chan- Figure I is a side elevation of a pipe maknel frame f 1. 0. -an i dapted for, holding ing machine constructed according to my inthe bellz ormin cegin pdsition.

vention. Fig. II is a longitudinal sectional lOn the topy o bearing .8 isfa bracket elevation of same. Fig. III is a transverse 23-Which carriesjale n.24, havingla latch A25. section on line III-III', of-Fig. I. Fig. IV vItlgidly mounts shaftfare the collars is a plan view of the forward part of;l the .26 and-.27 between.v ich is loosely mounted machine, one of the formed shields being a collar 28, havingtrunnions 29 to which a 40 removed to illustrate the parts thereunder connecting link l 30 is attached, the other more clearly. Fie. V is a detail of the screwend .of the link `being secured Ato lever 24. lFig. VI is a detail elevation of the tray and It. is apparent there ore that the shaft 6 its supporting means. Fig. VII isa transand screw 5 is adapted for longitudinal verse section of same. Fig. VIII is a detail movement as vwell as revoluble movement View of the chain adjusting mechanism, and that these partsmay be' moved for- Fig. IX is a detail view of the reverse side wardly by the lever, asl shown dotted of same. lines in Fig. II. Referring more in detail to the partez-1 Rigidly mounted on shaft is a collar 31 designates a cylinder which is rigidly supfor limiting Vthe 4backward y travel of; the

ported on legs 2 3, and provided with a shaft. l

hopper a, through which concrete or other Secured to the leg members 2 and 3 by plastic material may be fedto the cylinder bolts 34-35 are the bars 32 and 33, carrychamber. ing journal bearings 36 and 37, in which is Internally concentric with the ,cylinder 1 revolubly mounted a shaft 38. Rig-idly is a screw -5 which is rigidly secured to a mounted on the shaft 38 between the'journa-l revoluble power shaft 6, which is mounted bearings, isa sprocket wheel 39.1 Below porting same as it is formed.

journal bearing 37 and rigidly mounted on shaft 38,' is a gear 40 which is adapted to mesh with the rack members 41 on the side of channel frame 10. Also mounted on the bars/34 and 35, by bolts 44 are journal bearing 42 and 43. j

evolubly mounted in bearings 42-43, in line with sprocket wheel 39, is a -shaft 45, upon which is rigidly mounted the sprocket wheel 46 between said journal bearings.

Running over thev sprocket wheels 39-46,

`is a chain 47, which has projecting members 48 of suitable shape and form to project through a slot 49 in cylinder` 1 and engage a wire mesh or like form of reinforcement 50, and car'r it along when the screw 1s operated to orward the pipe.

Rigidly mounted on-cyllnder 1 are shlelds 49', which are adapted tofit closely around chain 47 and slot 49 so as to prevent any considerable loss of the plastic material. To secure proper tension on this chain I provide a means of adjusting samle, which consistsof a lug 51 that is formed integral with the bar, and through which a screw 52 passes to rest against a lug 53 on the journal bearing 42. The bolts 44 are adapted to slide in grooves 54 when adjustment takes place.

In the bell forming device, I show a reinforcement 55 which is formed outside of the machine and placed in position by hand.

The operation of the machine is as fol-l lows .A tray of the proper length, with its supporting frame, is placed in the machine as illustrated. A bell forming device of the shape desired is bolted to the supporting frame and the whole moved back until the bell moldvrests against the member 1. The lever 24 is then brought forward, thus moving the screw 5 forward and the core 21 within the aperture 2O of plug 19. The

reinforcement is rolled into a cylinder froma iiat piece, -the edges being left free so as to slip over shaft 6 between bearing 7 and `cylinder 1, and overlapped or joined after being placed in the machine, if desired. The

' is then placed in the hopper 4 from which it is taken by the screw and compressed into the bell ortion of the mold. When this space is lled, the feeding action continues and the bell portion and tray will be moved forwardly by the feeding pressure on the material, so that a pipe body continues to be formed after the bell portion has been moved outwardl away from the vcylinder and upper portlon of the mold, the tray traveling wlth the formed pipe and snp- By providing the movable screw and core, the latter mlay be moved into the bell plug and will revolve therein until the plastic material has packed against the plug, when continued pressure will force the screw back to the limit of its travel. When this limit has been reached, the continued pressure will force the formed pipe' and tray portion of the mold outwardly away from the stationf arji` parts.

he rack member 41 turns gear 40 which in turn revolves shaft 38 and sprocket 39, thus moving sprocket chain 47 at the same by Letters-Patent is 1. A pipe making machine comprising a feeding cylinder having a supply opening, a screw located within the cylinder and having an integral core portion at one end projecting through the end of the cylinder body, a mold member forming a continuation of said cylinder and surrounding said core, and means for actuating said screw.

2. A pipe making machine comprising a cylinder, having a supply opening, a mold member surrounding one end of said cylinder, a screw located within the cylinder and having a case projected into the mold, a

vshaft fixed to and extending rearwardly from the screw, collars fixed on the shaft, a collar revolubly mounted on the shaft between the fixed collars, a lever, and a link connect-ing said lever and fixed collar, for thepurpose set forth.

3. A pipe making machine comprisin a feeding chamber, a mold having a mova le tray portion having beveled upper edges, and a fixed cap portion having beveled lower edges coperatin with said tray por-I tion to complete a mo d channel, a shouldered plug set into the outer end of the assembled mold structure and provided with a central aperture, a screw located in the feeding chamber and having a core at its outer end for projection into the, plug aperture, and means for retracting said screw.

4. A pipe making machine comprising a feeding chamber, a mold member comprising a lower tray portion movable relative to the feeding chamber, an u per cap ortion'fxed relative to the fe mg cham r,

a bell member com rising a lower portion fixed relative to sai tra portion and having a' top member hingedY to said lower portion, a screw revoluble in the feeding cham- -ber and having a core projected into the mold member, a plug located in the'bell portion of the mold and having an off-set inner face and provided with a central aperture, into which said core may be projected, and ymeans for retracting said screw and core, for the purpose 'set forth.

5. A pipe making machine comprising a feeding chamber having side slots, a mold member at the free end of said feeding chamber and comprising amovable tray portion, means located at the side of said feeding chamber and projected through said slot for feeding reinforcement into the mold membemand mechanism for actuating said feeding means simultaneously 'with and relative to the travel of the movable mold member, for the purpose set forth.

6. A pipe making machine comprising a feeding chamber having aside slot, a frame adapted for longitudinal travel below the feeding chamber and rovided with a rack, a mold member carrie by the frame, a fixed mold member completing the mold structure, a toothed member adapted for operative travel within the feeding chamber -slot and having gear connection with the frame rack, and a screw and core carried within the feeding chamber and mold structure, for the purpose set forth.

7. A pipe making machine comprising a feeding chamber havinfll a hop er opening, rollers mounted below the chamlber, a frame movably mounted on said rollers and provided with side racks, a mold tray carried by said frame and adapted for travel therewith, a fixed mold cap, sprockets carried on vertical axles adjacent to the feeding chamber, chains carried by said sprockets and having teeth projected through said slots, gear connectionbetween the sprocket and frame racks, a screw located within the feeding chamber and having a core projected Y intov the mold structure, and means for moving said screw longitudinally,.for the purpose set forth.

In testimony whereof I afix my signature in presence of two witnesses.

WALTER A. BEES. 

